Essentials of Statistics (5th Edition)

Published by Pearson
ISBN 10: 0-32192-459-2
ISBN 13: 978-0-32192-459-9

Chapter 4 - Probability - 4-4 Multiplication Rule: Basics - Page 164: 8

Answer

Dependent, $\frac{1}{42}.$

Work Step by Step

Two events are dependent, if the outcome of one effects the outcome of the other. Here the events are dependent, because the selected day reduces the opportunities for the next selection. $P(A \cap B)=P(A)\cdot P(B|A)$. Hence $P(A \cap B)=\frac{1}{7}\cdot\frac{1}{6}=\frac{1}{42}.$
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